Datasheet

+3.3V, 622Mbps SDH/SONET
Laser Driver with Current Monitors and APC
T
A
= -40°C TO +85°C
I
MOD
= 5mA
DISTRIBUTION OF MODULATION CURRENT
STABILITY (WORST CASE)
MAX3669-11
MODULATION CURRENT STABILITY (ppm/°C)
UNITS (%)
0
10
5
20
15
30
25
35
-125 75 175-25 275 375 475 575
0
5
15
10
20
25
-100-500 100 300 500
DISTRIBUTION OF MONITOR DIODE CURRENT
STABILITY (WORST CASE)
MAX3669-12
MONITOR DIODE CURRENT STABILITY (ppm/°C)
PERCENT OF UNITS (%)
T
A
= -40°C TO +85°C
I
MD
= 18μA
-300
Maxim Integrated 5
MAX3669
Typical Operating Characteristics (continued)
(V
CC
= +3.3V, T
A
= +25°C, unless otherwise noted.)
0
10
5
20
15
30
25
35
RATIO OF I
MOD
vs. I
MODMON
MAX3669 toc13
I
MOD
(mA)
I
MOD
/I
MODMON
(mA/mA)
0 204060
80
T
A
= -40°C
T
A
= +85°C
T
A
= +25°C
0
10
15
20
25
30
35
40
45
0 20406080
RATIO OF I
BIAS
vs. I
BIASMON
MAX3669 toc14
I
BIAS
(mA)
I
BIAS
/I
BIASMON
(mA/mA)
5
T
A
= -40°C
T
A
= +25°C
T
A
= +85°C